Banana-nutella 3 minute ice cream

Name: Banana-nutella 3 minute ice cream
Prep time: 7 min
Cook time: 2 min
Total time: 9 min
Yield: 4
Cuisine: En
Ingredients: Ripe Bananas - 8-10 ( I had the small ones, if large ones, then about 3-4 will do); Nutella - 3 tbsp; Milk – 2 tbsp; Sugar – Optional ( I did not use them)